The application provides a gasification crude
coal gas safety relief
system, relates to the technical field of gasification crude
coal gas, and comprises a crude
coal gas pipeline, a first gas guide valve and a second gas guide valve are arranged in parallel on the crude
coal gas pipeline, two sides of the second gas guide valve are connected with relief
branch pipes, the two relief
branch pipes are connected with a relief main
pipe, the relief main
pipe is connected with a fire cabinet pipeline, and a valve
assembly is arranged on the relief
branch pipe, the crude
coal gas can be organizedly discharged to the fire cabinet through the relief branch pipe, the relief main pipe and the valve
assembly, compared with the in-situ
discharge mode of the prior art, the crude
coal gas can be safely guided to the fire cabinet for
combustion, the leakage and gathering of toxic and harmful gas and the injection of high-temperature gas under pressure are avoided, the life safety of workers is effectively protected, the operation risk is reduced, the safe and stable operation of the gasification device is maintained, the number of shutdown and maintenance of the gasification device due to safety problems is reduced, and the operation efficiency and reliability of the gasification device are improved.